A film that does little besides create the impression that the 22-year-old superstar has led a charmed life - an assurance that may reassure Mendes' very youngest fans but won't draw in anyone not already raptly caught in his spell.

When it was done, I wasn't sure I had watched anything at all.

I, for one, was hoping there'd be more behind the curtain.

[In Wonder] feels like little more than a carefully cultivated PR stunt and extended advertisement extended advertisement for Mendes' upcoming album Wonder.